Anti-misoperation high-pressure ball valve

Abstract

The anti-misoperation high-pressure ball valve comprises a valve body assembly, a valve rod, a sleeve and a handle, one end of the sleeve is fixedly connected with the valve body assembly, one end of the valve rod penetrates through the interior of the sleeve in the length direction of the sleeve and is connected with the valve body assembly, and the other end of the valve rod extends outwards from one end of the sleeve. A cavity penetrating through the length direction of the handle is formed in the handle, and the handle can slide in the length direction of the valve rod; the handle has a first state and a second state, when the handle is in the first state, the end, away from the valve body assembly, of the valve rod is connected with one end of the handle, and the handle is perpendicular to the valve rod; when the handle is in the second state, one end of the handle is located in the sleeve, the length extension direction of the handle and the length extension direction of the valve rod are located in the same vertical direction, and part of the valve rod is located in the cavity. According to the high-pressure ball valve, it can be guaranteed that the handle is not prone to being touched by mistake when not used, the valve rod and the ball cannot be driven to rotate even if the handle is touched by mistake, and the ball valve is effectively prevented from being opened or closed by mistake.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and in particular relates to a high-pressure ball valve capable of preventing misoperation. Background Art

[0002] At present, the ball valve is a very commonly used valve. The ball valve includes a valve body, a ball, a valve stem and a handle. The ball is installed in the valve body, one end of the valve stem is connected to the ball, and the other end of the valve stem is connected to the handle. By turning the handle, the valve stem can be driven to rotate, and then the ball can be driven to rotate to open or close the ball valve.

[0003] However, most of the existing ball valves are not designed with a structure to prevent misoperation. The handle of the ball valve is directly exposed to the outside without protection. Therefore, it is inevitable that the operator will accidentally touch the handle of the ball valve, causing the ball valve to be opened or closed by mistake, which will cause serious production safety accidents and bring economic losses. Utility Model Content

[0004] In view of this, in order to overcome the defects of the prior art, the purpose of the utility model is to provide an improved high-pressure ball valve that prevents misoperation, which can store the handle to prevent the handle from being accidentally touched, thereby preventing the ball valve from being opened or closed by mistake.

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

[0006] The utility model provides a misoperation-proof high-pressure ball valve, comprising a valve body assembly, a valve stem, a sleeve and a handle, wherein one end of the sleeve is fixedly connected to the valve body assembly, one end of the valve stem passes through the interior of the sleeve along the length direction of the sleeve and is connected to the valve body assembly, the other end of the valve stem extends outward from one end of the sleeve, a cavity is provided inside the handle that passes through the length direction of the handle, and the handle can slide along the length direction of the valve stem;

[0007] The handle has a first state and a second state. When the handle is in the first state, one end of the valve stem away from the valve body assembly is connected to one end of the handle, and the handle is perpendicular to the valve stem. When the handle is in the second state, one end of the handle is located inside the sleeve, the length extension direction of the handle and the length extension direction of the valve stem are located in the same vertical direction, and a portion of the valve stem is located in the cavity.

[0008] Through the structural design between the handle, the valve stem and the sleeve, the handle has a first state and a second state. When the handle is in the first state, rotating the handle can drive the valve stem to rotate, and then drive the ball in the valve body assembly to rotate, thereby opening or closing the high-pressure ball valve. After the operation is completed, the handle is converted to the second state, so that the handle can be inserted and stored in the cavity of the sleeve. In this state, the handle is not easily touched by mistake, and even if it is touched by mistake, it will not drive the valve stem and the ball to rotate, which can effectively prevent the ball valve from being opened or closed by mistake, thereby avoiding production safety accidents and economic losses caused thereby.

[0009] According to some preferred implementation aspects of the present utility model, the valve stem is parallel to the sleeve, the valve stem includes a first rod body and a second rod body, the bottom of the first rod body is fixedly connected to the top of the second rod body, the first rod body is provided with a slide groove running through the thickness direction thereof, the slide groove is parallel to the first rod body and the length of the slide groove is smaller than the length of the first rod body, the width of the slide groove is smaller than the width of the first rod body, and the width of the first rod body is less than or equal to the width of the cavity.

[0010] According to some preferred implementation aspects of the present invention, the central axis of the slide groove coincides with the central axis of the first rod body.

[0011] According to some preferred implementation aspects of the utility model, a pin is provided at one end of the handle, the pin penetrates the thickness direction of the cavity and the thickness direction of the slide, the length direction of the pin is perpendicular to the length direction of the handle and the first rod body, and the slide is used for the pin to slide up and down along the length direction of the slide. In some embodiments of the utility model, when the handle is in the first state, that is, the handle is outside the sleeve, the ball valve can be opened or closed by operating the handle; when the handle is in the second state, part of the handle is contained inside the sleeve, rather than directly exposed to the outside, which can avoid the problem of the ball valve being opened or closed by mistake due to the handle being touched by mistake. When the handle is converted from the first state to the second state, the pin slides from top to bottom along the slide of the first rod body, thereby bringing the handle to slide from top to bottom along the slide of the first rod body; when the handle is converted from the second state to the first state, the pin slides from bottom to top along the slide of the first rod body, thereby bringing the handle to slide from bottom to top along the slide of the first rod body.

[0012] According to some preferred implementation aspects of the utility model, a notch is provided at one end of the handle close to the pin rod, the notch is opened outward from the inner wall of one side of the handle close to the cavity, the end of the cavity close to the pin rod is connected to the notch, and the notch is used to allow the end of the first rod body away from the valve body assembly to enter the cavity. The provision of the notch facilitates the switching of the positional relationship between the handle and the first rod body, ensuring that the end of the first rod body away from the valve body assembly can enter the cavity, thereby realizing the sliding of the handle relative to the slide groove of the first rod body, so that the handle can be switched between the first state and the second state.

[0013] According to some preferred implementation aspects of the utility model, the handle further includes a limiting portion, which is obtained by opening the notch in the handle, and the horizontal distance between the pin and the limiting portion is equal to the distance between the outer wall of one side of the first rod body and the slide groove. The limiting portion can ensure that when the handle is in the first state, the handle can be maintained at a position perpendicular to the first rod body, and in the absence of external force, the position of the handle can be kept fixed and will not change at will, and the end of the handle close to the pin is rotatably connected to the end of the first rod body away from the valve body assembly, and when the handle is pushed upward under the action of external force, the handle will rotate relative to the first rod body until the handle and the first rod body are in the same vertical direction, and then the handle can slide downward along the slide groove of the first rod body through the pin.

[0014] According to some preferred implementation aspects of the utility model, when the handle is in the first state, one end of the first rod body away from the valve body assembly is rotatably connected to one end of the handle, and part of the outer wall of the first rod body abuts against the limiting portion, so as to make the handle perpendicular to the first rod body; when the handle is in the second state, one end of the handle close to the pin is flush with the bottom surface of the sleeve, the first rod body is located in the cavity, the outer wall of the first rod body fits with the inner wall of the handle, and the outer wall of the handle fits with part of the inner wall of the sleeve. In some embodiments of the utility model, when the handle is in the first state, the pin rod on the handle is located at the end of the slide away from the valve body assembly, and when the handle is in the second state, the pin rod on the handle is located at the end of the slide close to the valve body assembly.

[0015] According to some preferred implementation aspects of the utility model, the outer wall of the handle is provided with a magnetic ring, the distance from the magnetic ring to the end of the handle close to the pin rod is equal to the length of the sleeve, and the magnetic ring is used to absorb the top of the sleeve when the handle is in the second state. In some embodiments of the utility model, in certain applications, the high-pressure ball valve of the utility model will be installed at an angle, which may cause the handle to fall out of the sleeve when the handle is in the second state. By setting the magnetic ring, it can absorb the top of the metal sleeve, thereby preventing the handle from accidentally slipping out of the sleeve when the high-pressure ball valve is installed at an angle.

[0016] According to some preferred implementation aspects of the present invention, the length of the handle is greater than the length of the sleeve and the first rod body, and the length of the first rod body is greater than the length of the sleeve.

[0017] According to some preferred implementation aspects of the utility model, the valve body assembly includes a first valve body, a second valve body, a gland and a ball, the ball is located between the first valve body and the second valve body, the end of the second rod away from the first rod is rotatably connected to the ball, the gland is fixedly connected to the first valve body, and the bottom of the sleeve is fixedly connected to the gland. When the handle is in the first state, the first rod can be driven to rotate by rotating the handle, and since the first rod is fixedly connected to the second rod, the second rod can be driven to rotate accordingly, and finally the ball is driven to rotate to open or close the high-pressure ball valve.

[0018] Due to the adoption of the above technical scheme, compared with the prior art, the utility model is a high-pressure ball valve that prevents misoperation. Through the structural design between the handle, the valve stem and the sleeve, the handle has a first state and a second state. When the ball valve needs to be opened or closed, the handle is switched to the first state and the handle is rotated to drive the valve stem to rotate, thereby driving the ball in the valve body assembly to rotate, thereby opening or closing the high-pressure ball valve; when the ball valve is not in use, the handle is switched to the second state, the handle is inserted into and stored in the cavity of the sleeve, ensuring that the handle is not easily touched by mistake, and even if it is touched by mistake, it will not drive the valve stem and the ball to rotate, which can effectively prevent the ball valve from being opened or closed by mistake, thereby avoiding production safety accidents and economic losses caused thereby. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1It is an exploded view of the assembly of the high-pressure ball valve in the preferred embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the high-pressure ball valve in the preferred embodiment of the utility model when it is in the first state;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of the high-pressure ball valve in the preferred embodiment of the utility model when it is in the first state;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the high-pressure ball valve in the preferred embodiment of the utility model when it is in the second state;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the high-pressure ball valve in the preferred embodiment of the utility model when it is in the second state;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the handle in the preferred embodiment of the utility model;

[0026] In the accompanying drawings: valve body assembly-1, ball-11, first valve body-12, second valve body-13, first valve seat-14, second valve seat-15, gland-16, boss-161, sealing ring-17, packing-18, valve stem-2, first rod body-21, slide groove-211, second rod body-22, sleeve-3, handle-4, cavity-41, notch-42, limit part-43, pin rod-5, magnetic ring-6. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0028] Reference Figures 1 to 6, a high-pressure ball valve for preventing misoperation in this embodiment comprises a valve body assembly 1, a valve stem 2, a sleeve 3 and a handle 4. The valve body assembly 1 comprises a first valve body 12, a second valve body 13, a first valve seat 14, a second valve seat 15, a ball 11 and a gland 16, and the first valve body 12 and the second valve body 13 both have cavities inside. The first valve body 12 is fixedly connected to the second valve body 13, and the ball 11 is installed between the first valve body 12 and the second valve body 13; the first valve seat 14 is installed between the first valve body 12 and the ball 11, and the second valve seat 15 is installed between the second valve body 13 and the ball 11. The gland 16 is fixedly connected to the top surface of the first valve body 12, and the bottom of the sleeve 3 is fixedly connected to the top of the gland 16. In this embodiment, the sleeve 3 and the gland 16 are integrally formed, and the gland 16 has a cavity inside, so that the sleeve 3 is connected to the cavity of the gland 16 and the cavity of the first valve body 12.

[0029] Further, refer to Figure 3 and Figure 5 The valve stem 2 is parallel to the sleeve 3. The valve stem 2 includes a first rod body 21 and a second rod body 22. The length of the first rod body 21 is greater than the length of the sleeve 3. The first rod body 21 is located on the upper part of the second rod body 22 and the bottom of the first rod body 21 is fixedly connected to the top of the second rod body 22. The first rod body 21 and the second rod body 22 are located in the same vertical direction. The valve stem 2 as a whole passes through the interior of the sleeve 3 along the length direction of the sleeve 3.

[0030] The end of the second rod 22 away from the first rod 21 passes through the interior of the sleeve 3 and the cavity of the gland 16 and is rotatably connected to the ball 11. The end of the first rod 21 away from the second rod 22 passes through the interior of the sleeve 3 and extends outward from the end of the sleeve 3 away from the ball 11. In addition, a sealing ring 17 and a packing 18 are provided between the second rod 22 of the valve stem 2 and the first valve body 12, and a boss 161 for pressing the packing 18 is provided at the bottom of the gland 16 to ensure the sealing of the ball valve.

[0031] The first rod body 21 is provided with a slide groove 211 which runs through the thickness direction thereof. The slide groove 211 is parallel to the first rod body 21 . The length of the slide groove 211 is smaller than the length of the first rod body 21 . The width of the slide groove 211 is smaller than the width of the first rod body 21 . The central axis of the slide groove 211 coincides with the central axis of the first rod body 21 , that is, the distances from the two side walls of the first rod body 21 to the slide groove 211 are equal.

[0032] Furthermore, if Figure 3 and Figure 5As shown, the handle 4 has a cavity 41 extending through its length direction. The width of the first rod 21 is less than or equal to the width of the cavity 41. In this embodiment, the width of the first rod 21 is equal to the width of the cavity 41, and the length of the handle 4 is greater than the length of the sleeve 3 and the first rod 21. A pin 5 is provided at one end of the handle 4. The pin 5 extends through the thickness direction of the cavity 41. The length direction of the pin 5 is perpendicular to the length direction of the handle 4 and the first rod 21. At the same time, the pin 5 also extends through the thickness direction of the slide 211, so that the pin 5 can slide up and down between the two ends of the slide 211 along the length direction of the slide 211, and the handle 4 can also slide up and down along the length direction of the slide 211, which is equivalent to the valve stem 2. When the pin 5 slides to the upper end of the slide 211, the handle 4 is in the first state at this time, as shown in FIG. Figure 2 and Figure 3 As shown, at this time, the handle 4 is located outside the sleeve 3, and the end of the first rod body 21 away from the second rod body 22 is rotatably connected to one end of the handle 4 through the pin rod 5. The handle 4 is perpendicular to the first rod body 21, and the ball valve can be opened or closed by operating the handle 4; when the pin rod 5 slides to the lower end of the slide groove 211, the handle 4 is in the second state, as shown in FIG. Figure 4 and Figure 5 As shown, the length extension direction of the handle 4 and the length extension direction of the valve stem 2 are located in the same vertical direction, the first rod body 21 is located in the cavity 41 of the handle 4, and the end of the handle 4 close to the pin 5 is flush with the bottom surface of the sleeve 3, the outer wall of the first rod body 21 is in contact with the inner wall of the handle 4, and the outer wall of the handle 4 is in contact with the inner wall portion of the sleeve 3.

[0033] Specifically, Figure 6 As shown, a notch 42 is provided at one end of the handle 4 close to the pin 5, and a stopper 43 is provided at one end of the handle 4 by providing the notch 42. The notch 42 is provided outward from the inner wall of the handle 4 close to the cavity 41, and the notch 42 penetrates the side wall of the handle 4, and the end of the cavity 41 close to the pin 5 is connected with the notch 42, so that the notch 42 is used to allow the end of the first rod 21 away from the second rod 22 to enter the cavity 41, thereby realizing the sliding of the handle 4 relative to the slide groove 211 of the first rod 21, so that the handle 4 can be switched between the first state and the second state. The horizontal distance between the pin 5 and the stopper 43 is equal to the distance between the outer wall of one side of the first rod 21 and the slide groove 211, so that when the handle 4 is in the first state, part of the outer wall of the first rod 21 can abut against the stopper 43, and the handle 4 can be maintained at a position perpendicular to the first rod 21, and in the absence of external force, the position of the handle 4 can be kept fixed and will not change at will.

[0034] The outer wall of the handle 4 is also sleeved with a magnetic ring 6, and the distance between the magnetic ring 6 and the end of the handle 4 close to the pin 5 is equal to the length of the sleeve 3. The magnetic ring 6 is used to absorb the top of the sleeve 3 when the handle 4 is in the second state. The arrangement of the magnetic ring 6 can ensure that when the high-pressure ball valve is installed at an angle and the handle 4 is in the second state, the top of the metal sleeve 3 is absorbed by the magnetic ring 6 to prevent the handle 4 from accidentally slipping out of the sleeve 3.

[0035] The working process of the high-pressure ball valve for preventing misoperation of the utility model is as follows:

[0036] When the high-pressure ball valve is not needed, the handle 4 is in the second state, the handle 4 is inserted and partially stored inside the sleeve 3, the magnetic ring 6 attracts the top of the sleeve 3, and the handle 4 and the sleeve 3 are both located in the same vertical direction. In this state, the handle 4 is not easy to be touched by mistake, and even if it is touched by mistake, it will not drive the valve stem 2 and the ball 11 to rotate, which can effectively prevent the ball valve from being opened or closed by mistake. When the high-pressure ball valve needs to be opened or closed, the upper end of the handle 4 is pulled to drive the pin 5 to slide from bottom to top along the slide groove 211 of the first rod body 21 until the pin 5 is located at the upper end of the slide groove 211, and then the handle 4 is rotated relative to the valve stem 2 through the pin 5, so that the upper end of the first rod body 21 enters the cavity 41 of the handle 4 through the notch 42 of the handle 4, and after the handle 4 is rotated 90° clockwise, the outer wall of the first rod body 21 abuts against the limit portion 43 to clamp the handle 4, so that the handle 4 remains in a vertical position with the first rod body 21. At this time, the high-pressure ball valve can be opened or closed by rotating the handle 4 to drive the valve stem 2 to rotate, and then drive the ball 11 to rotate. When no other operations are needed temporarily after opening or closing the high-pressure ball valve, the handle 4 can be switched to the second state, by holding one end of the handle 4 and pushing it upward to rotate the handle 4 90 degrees counterclockwise relative to the valve stem 2 until the handle 4 and the first rod 21 are in the same vertical direction, and then the handle 4 is pushed downward along the slide groove 211 of the first rod 21 until the pin 5 is located at the lower end of the slide groove 211, so that the handle 4 is stored to prevent the handle 4 from being misoperated and causing the ball valve to be misoperated.

[0037] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-pressure ball valve that prevents misoperation. It is characterized in that It comprises a valve body assembly, a valve stem, a sleeve and a handle, one end of the sleeve is fixedly connected to the valve body assembly, one end of the valve stem passes through the interior of the sleeve along the length direction of the sleeve and is connected to the valve body assembly, the other end of the valve stem extends outward from one end of the sleeve, a cavity is opened inside the handle that passes through the length direction thereof, and the handle can slide along the length direction of the valve stem; The handle has a first state and a second state. When the handle is in the first state, one end of the valve stem away from the valve body assembly is connected to one end of the handle, and the handle is perpendicular to the valve stem. When the handle is in the second state, one end of the handle is located inside the sleeve, the length extension direction of the handle and the length extension direction of the valve stem are located in the same vertical direction, and a portion of the valve stem is located in the cavity.

2. The high pressure ball valve according to claim 1, It is characterized in that The valve stem is parallel to the sleeve, and the valve stem includes a first rod body and a second rod body. The bottom of the first rod body is fixedly connected to the top of the second rod body. The first rod body is provided with a slide groove running through the thickness direction thereof. The slide groove is parallel to the first rod body, the length of the slide groove is smaller than the length of the first rod body, the width of the slide groove is smaller than the width of the first rod body, and the width of the first rod body is smaller than or equal to the width of the cavity.

3. The high pressure ball valve according to claim 2, It is characterized in that The central axis of the sliding groove coincides with the central axis of the first rod body.

4. The high pressure ball valve according to claim 3, It is characterized in that A pin rod is provided at one end of the handle, and the pin rod passes through the thickness direction of the cavity and the thickness direction of the slide groove. The length direction of the pin rod is perpendicular to the length direction of the handle and the first rod body, and the slide groove is used for the pin rod to slide up and down along the length direction of the slide groove.

5. The high pressure ball valve according to claim 4, It is characterized in that A notch is provided at one end of the handle close to the pin rod, and the notch is opened outward from the inner wall of the handle close to the cavity. The end of the cavity close to the pin rod is connected to the notch, and the notch is used for the end of the first rod body away from the valve body assembly to enter the cavity.

6. The high pressure ball valve according to claim 5, It is characterized in that The handle further comprises a limiting portion, which is obtained by opening the notch in the handle, and a horizontal distance between the pin rod and the limiting portion is equal to a distance between an outer wall of one side of the first rod body and the sliding groove.

7. The high pressure ball valve according to claim 6, It is characterized in that When the handle is in the first state, one end of the first rod body away from the valve body assembly is rotatably connected to one end of the handle, and part of the outer wall of the first rod body abuts against the limiting portion, so as to make the handle perpendicular to the first rod body; when the handle is in the second state, one end of the handle close to the pin rod is flush with the bottom surface of the sleeve, the first rod body is located in the cavity, the outer wall of the first rod body is in contact with the inner wall of the handle, and the outer wall of the handle is in contact with part of the inner wall of the sleeve.

8. The high pressure ball valve according to claim 4, It is characterized in that The outer wall of the handle is sleeved with a magnetic ring, the distance between the magnetic ring and one end of the handle close to the pin rod is equal to the length of the sleeve, and the magnetic ring is used to attract the top of the sleeve when the handle is in the second state.

9. The high pressure ball valve according to claim 2, It is characterized in that The length of the handle is greater than the length of the sleeve and the first rod body, and the length of the first rod body is greater than the length of the sleeve.

10. The high pressure ball valve according to claim 2, It is characterized in that The valve body assembly includes a first valve body, a second valve body, a pressure cover and a ball. The ball is located between the first valve body and the second valve body. One end of the second rod body away from the first rod body is rotatably connected to the ball. The pressure cover is fixedly connected to the first valve body. The bottom of the sleeve is fixedly connected to the pressure cover.

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