Integrated sleeve with positioning operation handle for plug valve

Abstract

The invention belongs to the technical field of plug valves, and discloses an integrated sleeve with a positioning operation handle for a plug valve, which comprises a plug valve body, a first fixing part fixed at the upper end of the plug valve body in a threaded manner, a valve rod mounted in the plug valve body, and a handle sleeve part mounted at one end of the valve rod, the limiting device is used for limiting and screwing the valve rod; the limiting component is mounted in the middle of the handle sleeve component and used for limiting the rotation amplitude of the handle sleeve component; through cooperation of structures such as the adjusting gear ring and the fixed gear ring, the rotating angle of the valve rod is controlled conveniently, meanwhile, the valve rod rotating to the designated position is positioned, and the valve rod can be turned over within the 90-degree turning range through meshing between the adjusting gear ring and the fixed gear ring; the angle that the handle sleeve body drives the valve rod to rotate is accurately controlled by adjusting the number of moving grids of the teeth of the gear ring, so that the precision of the valve during rotation is improved, and then the flow flowing from the valve is accurately controlled and adjusted.

Description

Technical Field

[0001] This invention belongs to the field of plug valve technology, specifically an integrated sleeve with a positioning operating handle for plug valves. Background Technology

[0002] A plug valve is a type of valve that controls fluid flow by rotating a plug. Its core component is a plug with a through hole. The plug rotates with the valve stem to achieve opening and closing. It has a simple structure, consisting of a valve body, a plug, a valve stem, and other components. It has no complex internal structure and low manufacturing cost. At the same time, the plug has a small rotation angle (usually 90 degrees), low operating torque, and is easy to switch.

[0003] During the switching process of a plug valve, the valve stem rotation is usually restricted by the cooperation of a locking plate and a limiting component, thereby achieving the function of quickly rotating to the set position. However, the locking plate can only restrict the complete opening and closing of the sleeve. When it is necessary to control the rotation angle of the sleeve, a single locking plate cannot control the accuracy, which affects the operation accuracy of the valve. Therefore, an integrated sleeve with a positioning operating handle for plug valves is proposed. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an integrated sleeve with a positioning operating handle for plug valves.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated sleeve with a positioning operating handle for a plug valve, comprising a plug valve body, a first fixing member threadedly fixed to the upper end of the plug valve body, a valve stem installed inside the plug valve body, and further comprising: The handle sleeve component is installed at one end of the valve stem and is used to limit and rotate the valve stem; A limiting component is installed in the middle of the handle sleeve component to limit the rotation range of the handle sleeve component; A handle component, which is installed at one end of the handle sleeve component, is used to drive the handle sleeve component to rotate; The handle sleeve component includes a handle sleeve body that is slidably connected to the valve stem, an adjusting gear ring that is movably connected inside the handle sleeve body, and two pairs of limiting springs that are fixedly connected to the top of the adjusting gear ring. The limiting component includes a second fixing member that is threadedly fixed to the body of the plug valve, and limiting gaskets are provided at both ends of the top of the second fixing member.

[0006] Preferably, the handle sleeve component further includes a fixing toothed ring fixedly connected to the top of the first fixing member, the adjusting toothed ring being engaged with the fixing toothed ring, and the first fixing member being sleeved on one end of the valve stem.

[0007] Preferably, the adjusting toothed ring is slidably connected inside the handle sleeve body, and the adjusting toothed ring is sleeved on one end of the valve stem. One end of the limiting spring is fixedly connected to the plug valve body. An adjusting support block is provided in the middle of a pair of limiting springs and is slidably connected to the handle sleeve body. The adjusting support block is fixedly connected to the adjusting toothed ring.

[0008] Preferably, a pair of locking adjustment blocks and an adjustment rod are movably connected inside the handle sleeve body. The adjustment rod is rectangular with one side open. Both ends of the adjustment rod are rotatably connected to the locking adjustment blocks through connecting rods. Each of the two locking adjustment blocks has a spring at one end that is fixedly connected to the handle sleeve body.

[0009] Preferably, the locking adjustment block abuts against the adjustment support block, the corresponding position of the locking adjustment block and the connecting rod of the adjustment lever abutting against the handle sleeve body is arc-shaped, and a threaded rod is fixedly connected to the middle position of the top of the adjustment lever.

[0010] Preferably, the top of the threaded rod penetrates the top of the handle sleeve body and extends to the upper side of the handle sleeve body. An adjustment knob is rotatably connected to the top of the handle sleeve body, and the nut in the middle of the adjustment knob is threadedly connected to the threaded rod.

[0011] Preferably, when the threaded rod pulls the adjusting rod upward, the adjusting rod pulls the locking adjusting block through the connecting rod, causing the locking adjusting block to release its contact with the adjusting support block. At this time, the rotation of the handle sleeve body will drive the adjusting gear ring to rotate synchronously through the adjusting support block.

[0012] Preferably, the second fixing member is sleeved in the middle of the handle sleeve body and rotatably connected to the handle sleeve body. A limiting baffle that is fixedly connected to the handle sleeve body is provided on the upper side of the second fixing member, and a pair of limiting protrusions are provided on the outer side of the limiting baffle.

[0013] Preferably, the limiting protrusions all abut against the limiting gaskets, the included angle between a pair of limiting protrusions is 90°, and the side of the limiting protrusion that abuts against the limiting gasket is arc-shaped. The limiting gasket is sleeved on the screw that is fixedly connected to the second fixing member and the plug valve body.

[0014] Preferably, the handle component includes a handle body fixedly connected to the handle sleeve body, a sliding extension handle slidably connected to the middle of the handle body, and a rubber limiting strip fixedly connected to one end of the handle body near the handle sleeve body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention facilitates the control of the valve stem rotation angle by setting up an adjusting toothed ring and a fixed toothed ring, and positions the valve stem when it is rotated to a specified position. By adjusting the toothed ring and the fixed toothed ring, the angle of valve stem rotation driven by the handle sleeve body can be precisely controlled by adjusting the number of teeth moving within a 90° rotation range, thereby improving the accuracy of valve rotation and thus accurately controlling and adjusting the flow rate from the valve. This invention controls the locking state of the adjusting support block by setting up an adjusting rod and a locking adjusting block, thereby controlling the locking state of the handle sleeve body. By adjusting the adjusting rod, the locking adjusting block is moved to control the contact state between the locking adjusting block and the adjusting support block, thereby controlling whether the adjusting support block can move up and down. This allows the adjusting toothed ring and the fixed toothed ring to mesh and lock the handle sleeve body with the first fixed member, ensuring that the handle sleeve body locks the valve stem and preventing the handle sleeve body from being easily twisted, which could cause flow deviation at the stopcock valve body. This invention facilitates the control of the handle sleeve body to fully open and close the plug valve body by setting up a combination of handle components and limiting components. The limiting protrusion and the limiting gasket abut against each other, thereby ensuring that the handle sleeve body drives the valve stem to rotate to the fully open or closed state. The movable sliding extension handle inside the handle body can extend the torque of the handle body to provide greater thrust, thus dealing with plug valves that are difficult to turn under high pressure or corrosion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the handle sleeve component of the present invention; Figure 3 This is a schematic diagram of the middle part of the handle sleeve component of the present invention; Figure 4 This is an enlarged cross-sectional view of the adjusting toothed ring of the present invention; Figure 5 This is an enlarged detail view of the connection between the locking adjustment block and the adjustment rod in this invention; Figure 6 This is an enlarged cross-sectional view of the threaded rod and adjusting knob of the present invention; Figure 7 This is a detailed sectional view of the handle sleeve component and the limiting component of the present invention; Figure 8 This is a top sectional view of the handle sleeve component of the present invention; Figure 9 This is an enlarged cross-sectional view of the handle component of the present invention.

[0017] In the picture: 1. Plug valve body; 2. First fixing component; 3. Valve stem; 4. Handle sleeve assembly; 41. Handle sleeve body; 42. Adjusting gear ring; 43. Limiting spring; 44. Adjusting support block; 45. Locking adjusting block; 46. Adjusting rod; 47. Threaded rod; 48. Adjusting knob; 49. Fixing gear ring; 5. Limiting component; 51. Limiting stop; 52. Second fixing component; 53. Limiting gasket; 54. Limiting protrusion; 6. Handle component; 61. Handle body; 62. Sliding extension handle; 63. Rubber limiting strip. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 9 As shown, the present invention provides an integrated sleeve with a positioning operating handle for a plug valve, including a plug valve body 1, a first fixing member 2 threadedly fixed to the upper end of the plug valve body 1, a valve stem 3 installed inside the plug valve body 1, and further including: The handle sleeve component 4 is installed at one end of the valve stem 3 and is used to limit and rotate the valve stem 3; The limiting component 5 is installed in the middle of the handle sleeve component 4 and is used to limit the rotation range of the handle sleeve component 4. The handle component 6 is installed at one end of the handle sleeve component 4 and is used to drive the handle sleeve component 4 to rotate. The handle sleeve component 4 includes a handle sleeve body 41 that is slidably connected to the valve stem 3. An adjusting toothed ring 42 is movably connected inside the handle sleeve body 41. Two pairs of limiting springs 43 are fixedly connected to the top of the adjusting toothed ring 42. The limiting component 5 includes a second fixing member 52 that is threadedly fixed to the plug valve body 1, and limiting gaskets 53 are provided at both ends of the top of the second fixing member 52.

[0020] like Figures 1 to 4 As shown, the handle sleeve component 4 also includes a fixed toothed ring 49 fixedly connected to the top of the first fixing member 2, and the adjusting toothed ring 42 is engaged with the fixed toothed ring 49. The first fixing member 2 is sleeved on one end of the valve stem 3.

[0021] The above solution is adopted: by setting the first fixing member 2, the first fixing member 2 is fixed to the plug valve body 1, thereby fixing the fixing tooth ring 49, so as to ensure that when the handle sleeve component 4 needs to be locked, the fixing tooth ring 49 can stably engage and lock with the adjusting tooth ring 42.

[0022] like Figures 2 to 5 As shown, the adjusting gear ring 42 is slidably connected inside the handle sleeve body 41, and the adjusting gear ring 42 is sleeved on one end of the valve stem 3. One end of the limiting spring 43 is fixedly connected to the plug valve body 1. An adjusting support block 44 is provided in the middle of a pair of limiting springs 43 and is slidably connected to the handle sleeve body 41. The adjusting support block 44 is fixedly connected to the adjusting gear ring 42.

[0023] The above solution involves adjusting the setting of the gear ring 42 to fix the handle sleeve body 41, thereby fixing the valve stem 3. At the same time, the gear ring 42 can control the rotation angle of the handle sleeve body 41 by meshing with the fixed gear ring 49. This adjusts the vibration generated when the gear ring 42 meshes with and unlocks the fixed gear ring 49, confirming the number of teeth that move during rotation. Within a 90° rotation range, the angle at which the handle sleeve body 41 drives the valve stem 3 to rotate is precisely controlled by the number of teeth that move, thereby improving the accuracy of valve rotation and thus accurately controlling and adjusting the flow rate from the valve.

[0024] like Figures 3 to 7 As shown, a pair of locking adjustment blocks 45 and an adjustment rod 46 are movably connected inside the handle sleeve body 41. The adjustment rod 46 is a rectangular shape with one side open. Both ends of the adjustment rod 46 are rotatably connected to the locking adjustment blocks 45 through connecting rods. Each of the two locking adjustment blocks 45 has a spring at one end that is fixedly connected to the handle sleeve body 41. The locking adjustment block 45 abuts against the adjustment support block 44. The corresponding position of the locking adjustment block 45 and the adjustment rod 46 abutting against the handle sleeve body 41 is arc-shaped. A threaded rod 47 is fixedly connected to the middle position of the top of the adjustment rod 46.

[0025] The above scheme is adopted: by setting an adjusting support block 44 and a locking adjusting block 45, the adjusting support block 44 is slidably connected to the handle sleeve body 41, so that the adjusting gear ring 42 can rotate synchronously with the handle sleeve body 41. The setting of the locking adjusting block 45 and the adjusting pull rod 46 is used to control the locking state of the adjusting support block 44. By moving the locking adjusting block 45 to both sides and abutting against the adjusting support block 44, the adjusting support block 44 is limited and cannot move up and down. As a result, the adjusting gear ring 42 at the bottom of the adjusting support block 44 cannot be squeezed up by the fixed gear ring 49, so as to ensure that the adjusting gear ring 42 and the fixed gear ring 49 are engaged to lock the handle sleeve body 41 with the first fixing member 2, ensuring the locking of the valve stem 3 by the handle sleeve body 41, and preventing the handle sleeve body 41 from being easily twisted, which would cause the flow rate at the plug valve body 1 to deviate. The adjusting lever 46 is designed to simultaneously control the movement of a pair of locking adjusting blocks 45, thereby controlling the locking state of the adjusting support block 44 and enabling convenient control and locking of the handle sleeve body 41.

[0026] like Figures 3 to 7 As shown, the top of the threaded rod 47 penetrates the top of the handle sleeve body 41 and extends to the upper side of the handle sleeve body 41. An adjustment knob 48 is rotatably connected to the top of the handle sleeve body 41, and the nut in the middle of the adjustment knob 48 is threadedly connected to the threaded rod 47. When the threaded rod 47 pulls the adjusting rod 46 upward, the adjusting rod 46 pulls the locking adjusting block 45 through the connecting rod, causing the locking adjusting block 45 to release its contact with the adjusting support block 44. At this time, the rotation of the handle sleeve body 41 will drive the adjusting gear ring 42 to rotate synchronously through the adjusting support block 44.

[0027] The above scheme is adopted: by setting the threaded rod 47 and the adjusting knob 48, it is easy to drive the threaded rod 47 to move by turning the adjusting knob 48, thereby controlling the movement of the adjusting rod 46 to limit the locking or unlocking of the adjusting support block 44. When the threaded rod 47 pulls the adjusting rod 46 to move upward, the adjusting rod 46 will pull a pair of locking adjusting blocks 45 to move towards the middle through the connecting rods at both ends, so that the locking adjusting blocks 45 release their contact with the adjusting support block 44, freeing up the space at the top of the adjusting support block 44, which is convenient for the adjusting support block 44 to slide downward. At this time, the rotation of the handle sleeve body 41 will drive the adjusting gear ring 42 to rotate synchronously through the adjusting support block 44, so that the adjusting gear ring 42 can be squeezed upward by the fixed gear ring 49 when rotating, thereby controlling the locking state of the adjusting gear ring 42, ensuring that the handle sleeve body 41 can be unlocked and rotated normally during adjustment, and after the adjustment is completed, the adjusting gear ring 42 and the fixed gear ring 49 are engaged and locked to ensure that the position of the adjusting valve rod 3 remains stable.

[0028] like Figure 2 , Figure 7 and Figure 8 As shown, the second fixing member 52 is sleeved in the middle of the handle sleeve body 41 and is rotatably connected to the handle sleeve body 41. A limiting baffle 51 fixedly connected to the handle sleeve body 41 is provided on the upper side of the second fixing member 52. A pair of limiting protrusions 54 are provided on the outer side of the limiting baffle 51. The limiting protrusions 54 all abut against the limiting gaskets 53. The included angle between a pair of limiting protrusions 54 is 90°, and the side of the limiting protrusions 54 that abuts against the limiting gaskets 53 is arc-shaped. The limiting gaskets 53 are sleeved on the screw that is fixedly connected to the second fixing member 52 and the plug valve body 1.

[0029] The above solution is adopted: by setting a limiting component 5, the limiting protrusion 54 abuts against the limiting pad 53, thereby controlling the rotation angle of the handle sleeve body 41 within 90°, and the second fixing component 52 can be used to fix and limit the handle sleeve body 41.

[0030] like Figure 3 , Figure 7 and Figure 9 As shown, the handle component 6 includes a handle body 61 fixedly connected to the handle sleeve body 41, a sliding extension handle 62 slidably connected to the middle of the handle body 61, and a rubber limiting strip 63 fixedly connected to one end of the handle body 61 near the handle sleeve body 41.

[0031] The above solution is adopted: by setting a sliding extension handle 62, the torque of the handle body 61 can be extended to increase the pressure thrust. The rubber limit strip 63 is set to limit the sliding extension handle 62 when it is reset, so as to prevent the sliding extension handle 62 from sliding out.

[0032] Working principle and usage process of this invention: When adjustment of the stopcock valve is required, turning the adjusting knob 48 pulls the threaded rod 47 outwards from the handle sleeve body 41. Simultaneously, the threaded rod 47 moves the adjusting rod 46, which in turn moves the locking adjusting blocks 45 at both ends of the adjusting rod 46 inwards via a connecting rod. This causes the locking adjusting blocks 45 to contact the adjusting support block 44, allowing the adjusting support block 44 to slide freely up and down. At this point, manually turning the handle body 61 allows the handle to... Body 61 drives the handle sleeve body 41 to rotate. While the handle sleeve body 41 rotates, the adjusting toothed ring 42 inside the handle sleeve body 41 is squeezed upward by the fixed toothed ring 49 and then pushed downward by the limiting spring 43 to reset. This cycle repeats. Therefore, when the handle sleeve body 41 is twisted to rotate, the number of vibrations generated by the up and down shaking of the toothed ring 42 can be adjusted to determine the number of rotations, thereby controlling the rotation angle of the handle sleeve body 41. This achieves the purpose of the handle sleeve body 41 driving the valve stem 3 to rotate a certain angle. When the valve opening angle is uncertain, the handle body 61 can be continuously twisted and the handle sleeve body 41 rotated until the limiting protrusion 54 at one end of the limiting baffle 51 abuts against the second fixing member 52. At the same time, it is confirmed that the valve is completely closed. Then, the number of turns required to open the valve is calculated according to the required opening angle, thereby improving the accuracy of the valve opening size. When the handle sleeve body 41 cannot be rotated by the handle body 61, the sliding extension handle 62 can be pulled outward to combine with the handle body 61 to increase the torque of the handle. This is especially useful for some plug valves that are difficult to rotate under high pressure or corrosion, in order to achieve greater thrust. When not needed, the handle length can be reset to save space and improve applicability.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug valve with an integrated sleeve featuring a positioning operating handle, comprising a plug valve body (1), wherein a first fixing member (2) is threadedly fixed to the upper end of the plug valve body (1), and a valve stem (3) is installed inside the plug valve body (1), characterized in that, Also includes: Handle sleeve component (4), which is installed at one end of valve stem (3), is used to limit and rotate valve stem (3); The limiting component (5) is installed in the middle of the handle sleeve component (4) and is used to limit the rotation range of the handle sleeve component (4); A handle component (6) is installed at one end of a handle sleeve component (4) and is used to drive the handle sleeve component (4) to rotate; The handle sleeve component (4) includes a handle sleeve body (41) that is slidably connected to the valve stem (3). An adjusting toothed ring (42) is movably connected inside the handle sleeve body (41). Two pairs of limiting springs (43) are fixedly connected to the top of the adjusting toothed ring (42). The limiting component (5) includes a second fixing member (52) that is threadedly fixed to the plug valve body (1), and limiting gaskets (53) are provided at both ends of the top of the second fixing member (52).

2. The integrated sleeve with positioning operating handle for a plug valve according to claim 1, characterized in that: The handle sleeve component (4) further includes a fixed toothed ring (49) fixedly connected to the top of the first fixing member (2), the adjusting toothed ring (42) meshing with the fixed toothed ring (49), and the first fixing member (2) sleeved on one end of the valve stem (3).

3. The integrated sleeve with positioning operating handle for the plug valve according to claim 1, characterized in that: The adjusting toothed ring (42) is slidably connected inside the handle sleeve body (41), and the adjusting toothed ring (42) is sleeved on one end of the valve stem (3). One end of the limiting spring (43) is fixedly connected to the plug valve body (1). A pair of limiting springs (43) are provided with an adjusting support block (44) that is slidably connected to the handle sleeve body (41). The adjusting support block (44) is fixedly connected to the adjusting toothed ring (42).

4. The integrated sleeve with positioning operating handle for a plug valve according to claim 1, characterized in that: The handle sleeve body (41) is internally connected to a pair of locking adjustment blocks (45) and an adjustment rod (46). The adjustment rod (46) is rectangular with one side open. Both ends of the adjustment rod (46) are rotatably connected to the locking adjustment blocks (45) through connecting rods. Each of the two locking adjustment blocks (45) is provided with a spring at one end that is fixedly connected to the handle sleeve body (41).

5. The integrated sleeve with positioning operating handle for a plug valve according to claim 4, characterized in that: The locking adjustment block (45) abuts against the adjustment support block (44). The corresponding position of the locking adjustment block (45) and the adjustment lever (46) connecting rod abutting against the handle sleeve body (41) is arc-shaped. A threaded rod (47) is fixedly connected to the middle position of the top of the adjustment lever (46).

6. The integrated sleeve with positioning operating handle for a plug valve according to claim 5, characterized in that: The top of the threaded rod (47) penetrates the top of the handle sleeve body (41) and extends to the upper side of the handle sleeve body (41). An adjustment knob (48) is rotatably connected to the top of the handle sleeve body (41), and the nut in the middle of the adjustment knob (48) is threadedly connected to the threaded rod (47).

7. The integrated sleeve with positioning operating handle for a plug valve according to claim 5, characterized in that: When the threaded rod (47) pulls the adjusting rod (46) upward, the adjusting rod (46) pulls the locking adjusting block (45) to move through the connecting rod, so that the locking adjusting block (45) releases its contact with the adjusting support block (44). At this time, the rotation of the handle sleeve body (41) will drive the adjusting gear ring (42) to rotate synchronously through the adjusting support block (44).

8. The integrated sleeve with positioning operating handle for a plug valve according to claim 1, characterized in that: The second fixing member (52) is sleeved in the middle of the handle sleeve body (41) and is rotatably connected to the handle sleeve body (41). A limiting baffle (51) is fixedly connected to the handle sleeve body (41) on the upper side of the second fixing member (52). A pair of limiting protrusions (54) are provided on the outer side of the limiting baffle (51).

9. The integrated sleeve with positioning operating handle for a plug valve according to claim 8, characterized in that: The limiting protrusions (54) all abut against the limiting gaskets (53). The included angle between a pair of limiting protrusions (54) is 90°, and the side of the limiting protrusions (54) that abuts against the limiting gaskets (53) is arc-shaped. The limiting gaskets (53) are sleeved on the screw that is fixedly connected to the second fixing member (52) and the plug valve body (1).

10. The integrated sleeve with positioning operating handle for a plug valve according to claim 1, characterized in that: The handle component (6) includes a handle body (61) fixedly connected to the handle sleeve body (41), a sliding extension handle (62) slidably connected in the middle of the handle body (61), and a rubber limiting strip (63) fixedly connected to one end of the handle body (61) near the handle sleeve body (41).

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