Wear-resistant replaceable stop valve

Abstract

The wear-resistant replaceable stop valve comprises a valve body assembly, an adjusting mechanism and a valve element assembly, by arranging the adjusting mechanism and the valve element assembly, when a valve element main body needs to be replaced during use, an operator can rotate a first screw to enable a top plate to be disconnected from a valve sleeve, and the valve element main body needs to be replaced; then a rotating handle is rotated to drive a limiting screw rod to rotate and break away from a sliding groove, at the moment, an operator can pull an adjusting handle upwards to drive an adjusting screw rod to move upwards, so that the adjusting screw rod can drive a valve element assembly to move upwards and break away from a valve sleeve, and at the moment, the operator can rotate a second screw to make a connecting plate break away from a connecting block; and then the valve element body can be replaced according to the actual use environment and requirements, the disassembly and assembly modes are simple and convenient, the application range is wider, and practicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of stop valves, and more particularly to a wear-resistant and replaceable stop valve. Background Art

[0002] The globe valve, also called the cut-off valve, is the most widely used valve. It is popular because of the small friction between the sealing surfaces during opening and closing, the durability, the small opening height, the ease of manufacturing, the convenience of maintenance, and the fact that it is suitable not only for medium and low pressures, but also for high pressures. The closing principle of the globe valve is to rely on the valve stem pressure to make the valve disc sealing surface fit closely with the valve seat sealing surface to prevent the flow of the medium.

[0003] The patent with publication number CN 215635020 U discloses a wear-resistant manual stop valve, including a valve body, a valve stem and a rotating handle, the valve body is connected with the valve cover, a water inlet is arranged at the left end of the valve body, a water outlet is arranged at the right end of the valve body, and a chuck is symmetrically installed inside the valve body; the rotating handle extends downward into the limit block and the valve cover in turn, a section of thread is arranged at the lower part of the rotating handle, and a valve stem with a built-in thread groove is screwed at the thread; the upper part of the valve stem is located in the inner cavity of the valve cover, the lower part of the valve stem extends out of the valve cover and extends into the valve body, and is connected with a valve core, and a buffer mechanism is symmetrically installed on the inner top of the valve cover; when opening and closing the manual stop valve, by rotating the rotating handle, the valve stem is restricted by the sliding groove and the slider, and the rotating handle makes the valve stem move up and down through the thread between the rotating handle and the upper end of the valve stem, and the valve stem does not rotate, thereby reducing the wear of the valve stem and extending the service life of the manual stop valve.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that when the device is in use, the valve stem and the valve core constantly rub against the sliding cover during the up and down displacement process, which is prone to bending and wear after long-term use, reducing the service life. In addition, in actual use, different usage scenarios often require the use of valve cores made of different materials. Therefore, the operator is required to replace the valve core to adapt to different usage scenarios, such as valve cores used in normal temperature environments, valve cores that can be used in high temperature environments, and valve cores that can adapt to expansion, etc. However, the valve stem and valve cover of the device are limited by a sliding block, and the operator cannot quickly disassemble and replace the valve core and valve stem. Disassembly and replacement are difficult and lack practicality.

[0005] Therefore, it is necessary to invent a variety of wear-resistant and replaceable stop valves to solve the above problems. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wear-resistant and replaceable stop valve to solve the problem that when the existing stop valve is in use, the operator cannot quickly disassemble and replace the valve core and valve stem, and the disassembly and replacement are difficult and lack practicality.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wear-resistant and replaceable stop valve, comprising a valve body assembly, an adjusting mechanism and a valve core assembly, the adjusting mechanism is arranged on the valve body assembly, the valve core assembly is located inside the adjusting mechanism, the valve body assembly comprises a valve body main body, the adjusting mechanism comprises a valve sleeve, the valve sleeve is fixedly connected to the top of the valve body main body, the valve core assembly comprises a threaded sleeve, a sliding groove, a connecting block, a valve core main body, a connecting plate, a second screw and a limiting screw, the threaded sleeve is located in a sliding sleeve connected to the inside of the valve sleeve, the sliding groove is opened on the surface of the threaded sleeve, the connecting block is fixedly connected to the bottom of the threaded sleeve, the connecting plate is fixedly connected to the top of the valve core main body, the connecting plate is threadedly connected to the connecting block by a second screw, the limiting screw is threadedly connected to the valve sleeve and one end extends into the sliding groove, and the diameter of the limiting screw matches the width of the sliding groove.

[0008] As a further description of the above technical solution, the valve core assembly also includes a sealing sleeve, which is fixedly sleeved on the outer side of the valve core body.

[0009] As a further description of the above technical solution, the valve body assembly also includes a water inlet, a water outlet, a fixed plate and a first slot, the water inlet and the water outlet are respectively opened at both ends of the valve body, the fixed plate is fixedly connected to the inside of the valve body, and the first slot is opened on the surface of the fixed plate and passes through the fixed plate.

[0010] As a further description of the above technical solution, the valve body assembly also includes a sealing plate and a second notch, the sealing plate is fixedly connected to the valve body and located above the fixed plate, and the second notch is opened on the surface of the sealing plate and penetrates the sealing plate.

[0011] As a further description of the above technical solution, the adjusting mechanism also includes a threaded hole, a top plate, a first screw and an adjusting screw, the threaded hole is opened at the top of the valve sleeve, the top plate is located above the valve sleeve, the first screw is threadedly connected to the top plate and passes through the top plate and is threadedly connected to the valve sleeve through the threaded hole, the adjusting screw is rotatably connected to the top plate through a bearing and both ends pass through the top plate.

[0012] As a further description of the above technical solution, the adjustment mechanism also includes an adjustment handle, and the adjustment handle is fixedly connected above the adjustment screw.

[0013] As a further description of the above technical solution, the valve core assembly also includes a rotating handle, which is fixedly connected to the second screw, and the threaded sleeve is threadedly sleeved on the outside of the adjusting screw.

[0014] As a further description of the above technical solution, the valve core body matches the size of the first notch, and the sealing sleeve matches the size of the second notch.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is provided with an adjustment mechanism and a valve core assembly, so that when the valve core body needs to be replaced during use, the operator can turn the first screw to disconnect the top plate from the valve sleeve, and then turn the rotating handle to drive the limit screw to rotate and disengage from the sliding groove. At this time, the operator can pull the adjustment handle upward to drive the adjustment screw to move upward, so that the adjustment screw can drive the valve core assembly to move upward and disengage from the valve sleeve. At this time, the operator can turn the second screw to disconnect the connecting plate from the connecting block, and then the valve core body can be replaced according to the actual use environment and needs. The disassembly and installation methods are simple and convenient, and the application range is wider and more practical.

[0017] 2. The present invention provides an adjustment mechanism with an adjustment handle and an adjustment screw, and a valve core assembly with a threaded sleeve, a sliding groove, a limit screw and a rotating handle, so that when the stop valve needs to be switched in actual use, the operator can drive the adjustment screw to rotate by rotating the adjustment handle. The rotation of the adjusting screw causes the threaded sleeve to move under the limitation of the limit screw and the sliding groove. The movement of the threaded sleeve can drive the connecting block and the valve core body to move straight up and down, thereby avoiding the bending and damage of the valve core body and the sealing sleeve due to wear under long-term use, thereby improving the service life of the stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A front view of the overall structure provided by the present invention;

[0020] Figure 2 A schematic diagram of the overall structure provided by the present invention;

[0021] Figure 3 A cross-sectional view of the internal structure provided by the present invention;

[0022] Figure 4 A schematic diagram of the internal structure provided by the present invention;

[0023] Figure 5 A schematic diagram of the adjustment mechanism provided by the present invention;

[0024] Figure 6 A schematic diagram of a valve core assembly provided by the present invention;

[0025] Figure 7 A top view of the internal structure provided by the present invention.

[0026] Description of reference numerals:

[0027] 1. Valve body assembly; 11. Valve body; 12. Water inlet; 13. Water outlet; 14. Fixing plate; 15. First notch; 16. Sealing plate; 17. Second notch;

[0028] 2. Adjustment mechanism; 21. Valve sleeve; 22. Threaded hole; 23. Top plate; 24. First screw; 25. Adjustment screw; 26. Adjustment handle;

[0029] 3. Valve core assembly; 31. Threaded sleeve; 32. Sliding groove; 33. Connecting block; 34. Valve core body; 35. Connecting plate; 36. Second screw; 37. Sealing sleeve; 38. Limiting screw; 39. Turning handle. DETAILED DESCRIPTION

[0030] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example:

[0033] Refer to the attached Figure 1 The embodiment of the present invention is a wear-resistant and replaceable stop valve, which includes a valve body assembly 1, an adjusting mechanism 2 and a valve core assembly 3. The adjusting mechanism 2 is arranged on the valve body assembly 1, and the valve core assembly 3 is located inside the adjusting mechanism 2.

[0034] Refer to the attached Figure 2-4 In the present disclosure, the valve body assembly 1 includes a valve body 11, a water inlet 12, a water outlet 13, a fixing plate 14, a first slot 15, a sealing plate 16 and a second slot 17, wherein: the water inlet 12 and the water outlet 13 are respectively opened at both ends of the valve body 11, the fixing plate 14 is fixedly connected to the inside of the valve body 11, the first slot 15 is opened on the surface of the fixing plate 14 and penetrates the fixing plate 14, the sealing plate 16 is fixedly connected to the valve body 11 and is located above the fixing plate 14, and the second slot 17 is opened on the surface of the sealing plate 16 and penetrates the sealing plate 16.

[0035] Refer to the attached Figure 2 and Figure 5 In the present disclosure, the adjustment mechanism 2 includes a valve sleeve 21, a threaded hole 22, a top plate 23, a first screw 24, an adjusting screw 25 and an adjusting handle 26, wherein the valve sleeve 21 is fixedly connected to the top of the valve body 11, the threaded hole 22 is opened at the top of the valve sleeve 21, the top plate 23 is located above the valve sleeve 21, the first screw 24 is threadedly connected to the top plate 23 and passes through the top plate 23 and is threadedly connected to the valve sleeve 21 through the threaded hole 22, the adjusting screw 25 is rotatably connected to the top plate 23 through a bearing and both ends pass through the top plate 23, and the adjusting handle 26 is fixedly connected to the top of the adjusting screw 25.

[0036] Refer to the attached Figure 3-7 In the present disclosure, the valve core assembly 3 includes a threaded sleeve 31, a sliding groove 32, a connecting block 33, a valve core body 34, a connecting plate 35, a second screw 36, a limiting screw 38, a sealing sleeve 37 and a rotating handle 39, wherein the threaded sleeve 31 is located in a sliding sleeve inside the valve sleeve 21, the sliding groove 32 is opened on the surface of the threaded sleeve 31, the connecting block 33 is fixedly connected to the bottom of the threaded sleeve 31, the connecting plate 35 is fixedly connected to the top of the valve core body 34, the connecting plate 35 and the connecting block 33 are threadedly connected by the second screw 36, the limiting screw 38 is threadedly connected to the valve sleeve 21 and one end extends into the sliding groove 32, the diameter of the limiting screw 38 matches the width of the sliding groove 32, the sealing sleeve 37 is fixedly sleeved on the outside of the valve core body 34, the valve core body 34 matches the size of the first notch 15, the sealing sleeve 37 matches the size of the second notch 17, the rotating handle 39 is fixedly connected to the second screw 36, and the threaded sleeve 31 is threadedly sleeved on the outside of the adjusting screw 25.

[0037] Therefore, when the valve core body 34 needs to be replaced, the operator rotates the first screw 24 to disconnect the top plate 23 from the valve sleeve 21, and then rotates the rotating handle 39. The rotating handle 39 drives the limiting screw 38 to rotate until one end of the limiting screw 38 completely disengages from the sliding groove 32. At this time, the operator pulls the adjusting handle 26 upward, and the movement of the adjusting handle 26 drives the adjusting screw 25 to move upward, so that the adjusting screw 25 drives the valve core assembly 3 to move upward and disengage from the valve sleeve 21. At this time, the operator can rotate the second screw 36 to disconnect the connecting plate 35 from the connecting block 33, and then the valve core body 34 can be replaced according to the actual use environment and needs.

[0038] When the stop valve needs to be switched, the operator turns the adjusting handle 26 to drive the adjusting screw 25 to rotate. The adjusting screw 25 rotates to move the threaded sleeve 31 under the limit of the limit screw 38 and the sliding groove 32. The movement of the threaded sleeve 31 can drive the connecting block 33 and the valve core body 34 to move straight up and down. When the valve core body 34 is separated from the first notch 15, the stop valve is opened. When the valve core body 34 passes through the first notch 15, the stop valve is closed, and the second notch 17 is sealed by the sealing sleeve 37.

[0039] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 wear-resistant and replaceable stop valve, comprising a valve body assembly (1), an adjusting mechanism (2) and a valve core assembly (3), wherein the adjusting mechanism (2) is arranged on the valve body assembly (1), and the valve core assembly (3) is located inside the adjusting mechanism (2), characterized in that: The valve body assembly (1) comprises a valve body (11), the regulating mechanism (2) comprises a valve sleeve (21), the valve sleeve (21) is fixedly connected to the upper part of the valve body (11), the valve core assembly (3) comprises a threaded sleeve (31), a sliding groove (32), a connecting block (33), a valve core body (34), a connecting plate (35), a second screw (36) and a limiting screw (38), the threaded sleeve (31) is located inside the valve sleeve (21) and is slidably sleeved. The groove (32) is formed on the surface of the threaded sleeve (31); the connecting block (33) is fixedly connected to the bottom of the threaded sleeve (31); the connecting plate (35) is fixedly connected to the top of the valve core body (34); the connecting plate (35) and the connecting block (33) are threadedly connected via a second screw (36); the limiting screw (38) is threadedly connected to the valve sleeve (21) and one end thereof extends into the interior of the sliding groove (32); and the diameter of the limiting screw (38) matches the width of the sliding groove (32).

2. A wear-resistant replaceable stop valve according to claim 1, characterized in that: The valve core assembly (3) further comprises a sealing sleeve (37), wherein the sealing sleeve (37) is fixedly sleeved on the outside of the valve core body (34).

3. A wear-resistant replaceable stop valve according to claim 2, characterized in that: The valve body assembly (1) further comprises a water inlet (12), a water outlet (13), a fixing plate (14) and a first notch (15); the water inlet (12) and the water outlet (13) are respectively arranged at two ends of the valve body (11); the fixing plate (14) is fixedly connected to the inside of the valve body (11); and the first notch (15) is arranged on the surface of the fixing plate (14) and penetrates the fixing plate (14).

4. A wear-resistant replaceable stop valve according to claim 3, characterized in that: The valve body assembly (1) further comprises a sealing plate (16) and a second notch (17); the sealing plate (16) is fixedly connected to the valve body (11) and is located above the fixing plate (14); the second notch (17) is formed on the surface of the sealing plate (16) and penetrates the sealing plate (16).

5. A wear-resistant replaceable stop valve according to claim 4, characterized in that: The adjusting mechanism (2) further comprises a threaded hole (22), a top plate (23), a first screw (24) and an adjusting screw rod (25); the threaded hole (22) is opened at the top of the valve sleeve (21); the top plate (23) is located above the valve sleeve (21); the first screw (24) is threadedly connected to the top plate (23) and passes through the top plate (23) to be threadedly connected to the valve sleeve (21) through the threaded hole (22); the adjusting screw rod (25) is rotatably connected to the top plate (23) through a bearing and both ends pass through the top plate (23).

6. A wear-resistant replaceable stop valve according to claim 5, characterized in that: The adjustment mechanism (2) further comprises an adjustment handle (26), wherein the adjustment handle (26) is fixedly connected to the top of the adjustment screw (25).

7. A wear-resistant replaceable stop valve according to claim 6, characterized in that: The valve core assembly (3) further comprises a rotating handle (39), wherein the rotating handle (39) is fixedly connected to the second screw (36), and the threaded sleeve (31) is threadedly sleeved on the outside of the adjusting screw (25).

8. A wear-resistant replaceable stop valve according to claim 7, characterized in that: The valve core body (34) matches the size of the first notch (15), and the sealing sleeve (37) matches the size of the second notch (17).

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